Today is "Ada Lovelace Day" - a day set aside to be an international day of blogging dedicated to spotlighting those women in science and technology fields that you feel have gone above and beyond and should be recognized for it. Here's more from the official site:

Women's contributions often go unacknowledged, their innovations seldom mentioned, their faces rarely recognized. We want you to tell the world about these unsung heroines. [...] If women need female role models, let's come together to highlight the women in technology that we look up to. Let's create new role models and make sure that whenever the question "Who are the leading women in tech?" is asked, that we all have a list of candidates on the tips of our tongues.

Members of the PHP community have already started making their blog posts (and tweets) about the day - here's a list: